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[tex]\blue\textsf{\textbf{\underline{\underline{Question:-}}}}[/tex]
Evaluate the expression a²-18+4b when a=3 and b=-6
[tex]\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}[/tex]
Substitute 3 in lieu of a and -6 in lieu of b:-
(3)²-18+4(-6)
9-18+4(-6)
On further simplification,
9-18-24
[tex]\dashrightarrow\bigstar\boxed{\boxed{\underline{\bold{-33}}}}\dashleftarrow[/tex]
Good luck.
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